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(No Model.) 2 SheetsSheet 1.

F. M, M. G,, M. J. & M. L. HARRIS.

TILE MACHINE.

No. 298,850. w Patented May 20, 18 84.

- Horney (No Model.) 7 2 Sheets--Sheet 2. P. M., M. G., M. J. & M. L. HARRIS.

TILE MACHINE;

No. 298,850. Patented May 20,1884.

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lhvrrn Sra'rns 1 tries.

FRANCIS M. HARRIS, MAXW'ELL G. HARRIS, MILO J. HARRIS, AND MARCUS L. HARRIS, OF OOVINGTON, INDIANA, ASSIG-NORS OF ONE-FIFTH TO JOHN N. SPINING, OF SAME PLACE.

TILE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 298,850, dated May 20, 188%.

Application iiled November 8, 1883. (No model.)

To all whom it may concern:

Be it known that we, FRANCIS M. HARRIS, MAXWELL G. HARRIS, MILO J. I-IARBIS, and MARcUs L. HARRIS, of Oovington, in the county of Fountain and State of Indiana, have invented certain new and useful Improvements in Tile-Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable Io others Skilled in the art to which it appertains to make and use the same.

Our invention relates to an improvement in tile-machines, the object being to provide a tile-machine which shall execute work rapidly 1 5 and correctly, which shall be retarded by friction as little as possible, and shall be simple in construction and durable.

WVith these ends in view our invention consists in certain features of construction and combinations of parts, as will be fully described, and pointed out in the claim.

I11 the accompanying drawings, Figure l is a horizontal sectional view of our machine. Fig. 2 is a front elevation of same. Fig. 3 is 2 5 a rear elevation of same, and Fig. 4 is a detached view of the plate.

A represents the frame -work which supports the machine.

O is a shaft, journaled to the frame A at g g,

0 and provided with the driving'pulley and the spur-wheel S, securely attached thereto.

F is a hollow shaft, journaled to the frame A at g g, and provided with the spur-wheel S and the screw-blades B, securely attached thereto. The screw or tempering blades B are rigidly held against rotary movement independently of the shaft F by any suitable means, and are prevented from displacement by the sleeves g, which latter separate the 0 blades B. The Spur-wheel S is adapted to engage with the spur-wheel S.

H is a solid shaft, threaded at both ends to receive the nuts a a. H is further provided with the die I at the rear end, securely fast- 4 5 ened thereto, and is made square or some other convenient angular shape below the thread at the other end, to keep it from turning in the plate J. This shaft H is within the hollow Shaft F, and is further provided with the shoulder (1, which forms a bearing for the hollow 5o shaft F. A cylinder or forcing-chamber, K, surrounds the screw-bladed portion of the 1101- low shaft F. This cylinder is made intwo horizontal sections, which are provided with perforated flanges f f, to enable them to be bolted together, and with perforated flanges f f, by means of which the outside dies, L L, are bolted to said cylinder. A feeder, G, is placed 011 the top of the cylinder K at the front end. A plate, J, is bolted to the front portion of the frame-work, and provided with a hole made to receive the squared portion of the end of the solid shaft H.

The operation of the machine is as follows: The clay placed in the feeder G falls into the cylinder K. The shaft F, now revolving, forces the clay to the rear by means of the screwblades B. The action of these blades against the clay causes the shaft F to press against the plate J. At the same time the pressure of the clay against the die I causes the solid shaft H to draw on the plate J. Thus the plate J is heldin position for the most part by the action of the machine, and no unusual strength ening is required. The cylinder forcing-chamber being entirely free from connections with the Shafts, the clay is forced between the dies without obstruction. The inside die may be removed and others of different diameters and different shapes substituted, thereby changing the thickness of the entire tile, or of portions of the same. In the same manner the outside die may be exchanged for others which will vary the shape of the tile. The shaft F having but a single bearing on the shaft H, the 85 friction is slight. Again, the dies I and L remaining stationary, and their peripheries be ing free from seams, both the inside and outside surfaces of the tiles will be even.

It is evident that the machine will be durable from the small number of movable parts and the small number of frictional contacts between these parts.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

In a tile-machine, the combination, with a frame for supporting the driving-gear, and a 5 cylinder secured to one side of the frame and provided at its outer end with a die, of a hollow rotary shaft journaled in the side pieces of the supporting-frame, and having a gearwheel secured thereto between said side pieces,

IO said hollow shaft extending into the cylinder and nearly to the outer end thereof, tempering-blades formed with hubs or sleeves encircling the hollow shaft, and spacing-sleeves be tween the tempering-blades, and a rod extending through the hollow shaft and secured at one end to the machine-frame, the opposite end of the rodhaving an enlarged bearing for supporting the outer end of the hollow shaft, and a die removably secured to the outer and projeeting end of said rod, substantially as set 20 forth.

In testimony whereof we have signed-this specification in the presence of two subscribing witnesses.

WVitnesses: J. B. \VILLEMs, JOHN B. MARTIN. 

